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1. WO2020112431 - PROCÉDÉ ET SYSTÈME DE FORMAGE PAR ROULEAUX ET DE LAMINAGE DE VERRE DE PROTECTION À L'AIDE DE ROULEAUX DE PRESSION

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

What is claimed is:

1. A method of forming a glass article, comprising the steps of:

applying an adhesive layer to a frame, the frame comprising at least a first curvature;

aligning a substantially planar glass sheet with the frame; and

pressure rolling the glass sheet and the frame between at least a first roller and a second roller so as to bend the glass sheet into conformity with the first curvature of the frame, wherein at least one of the first roller and the second roller is configured to apply a presssure normal to the glass sheet and frame during pressure rolling.

2. The method of claim 1, wherein the adhesive layer comprises at least one of a

toughened adhesive, a flexible epoxy, an acrylic, a urethane, a silicone, or a pressure sensitive adhesive tape and wherein the adhesive layer bonds the glass sheet to the frame to maintain the glass sheet in conformity with the first curvature of the frame.

3. The method of claim 1, wherein the adheisve layer comprises a double-sided adhesive sheet comprising a release layer and wherein the step of applying the adhesive layer to the frame further comprises pressure rolling the adhesive layer onto the frame with the release layer facing away from the frame.

4. The method of claim 3, wherein the adhesive layer has a larger area than a surface of the frame and wherein the method further comprises the step of trimming the adhesive layer to match the surface of the frame.

5. The method of claim 4, wherein the frame comprises at least one opening for a

display device and wherein the step of trimming the adhesive layer further comprises removing a region of the adhesive layer corresponding to each of the at least one opening.

6. The method of any one of the preceding claims, wherein the step of aligning further comprises positioning the glass sheet and the frame between a first adjustable alignment plate and a second adjustable alignment plates prior to or during the step of pressure rolling.

7. The method of claim 6, wherein the step of aligning further comprises positioning the glass sheet and the frame on an alignment jig comprising a plurality of alingment pins, inserting the alignment jig between the first adjustable alignment plate and the second adjustable alignment plate, and moving at least some of the alignment pins so that the glass sheet and frame are able to be fed across the alignment jig during pressure rolling.

8. The method of claim 6 or claim 7, wherein the glass sheet and frame each have a non- uniform width and wherein the first adjustable alignment plate and the second adjustable alignment plate are configured to move laterally during pressure rolling such that the first adjustable alignment plate and the second adjustable alignment plate remain in contact with the glass sheet and the frame.

9. The method of any one of the preceding claims, further comprising the step of

applying a clamping force to the glass sheet and the frame after the step of pressure rolling.

10. The method of any one of the preceding claims, further comprising the step of curing the adhesive layer with ultraviolet light or at elevated temperature.

11. The method of any one of the preceding claims, wherein the frame further comprises a second curvature.

12. The method of claim 11 , wherein the first curvature is concave and the second

curvature is convex.

13. The method of claim 11 or claim 12, wherein at least one of the first curvature or the second curvature has a bend radius of less than 10000 mm.

14. The method of any one of the preceding claims, wherein the glass sheet comprises a chemically strengthened aluminosilicate glass composition.

15. The method of any one of the preceding claims, wherein the glass sheet has a

thickness of from 0.4 mm to 2.0 mm.

16. The method of any one of the preceding claims, wherein the method further comprises the step of applying a surface treatment to the second side of the glass sheet prior to the step of pressure rolling.

17. The method of claim 16, wherein the surface treatment is at least one of a tint film, an ink or pigment design, an anti-glare treatment, an anti-reflective coating, and easy-to- clean coating.

18. An alignment system for rolling a curved glass article comprising a glass sheet

bonded to a frame, the alignment system configured for placement proximal to a set of rollers, the alignment system comprising:

a first alignment plate; and

a scond aligment plate arranged parallel to the first alignment plate, the second alignment plate being separated from the first alignment plate by a distance corresponding to a width of at least one of the frame or the glass substrate;

wherein the first alignment plate and the second alignment plate are configured to move parallel to the set of rollers so as to set the distance corresponding to the width prior to or during rolling of the curved glass article.

19. The alignment system of claim 18, further comprising an alignment jig comprising a plurality of alignment pins, the alignment jig positioned between the first alignment plate and the second alignment plate, wherein the alignment jig is configured to align the glass sheet with the frame using the plurality of alignment pins.

20. The alignment system of claim 19, wherein alignment jig has a first end and a second end, wherein the plurality of alignment pins comprises a row of alignment pins across the first end, and wherein the row of alignment pins are configured move so that the glass sheet and the frame are able to pass across the alignment jig from the second end to the first end during rolling.

21. The alignment system according to any one of claims 18-20, wherein the first

alignment plate and the second alignment plate apply pressure on the glass article.

22. The alignment system of claim 21, wherein springs apply spring force on the first alignment plate and on the second alignment plate to cause the first alignment plate and the second alignment plate to apply pressure on the glass article.

23. A presure rolling system, comprising:

the alignment system according to any one of claims 18-22; and

a set of pressure rollers.

24. The pressure rolling system of claim 23, wherein the set of pressure rollers are

configured to apply heat to the glass article during rolling.

25. The pressure rolling system of claim 23 or claim 24, wherein at least one pressure roller of the set of pressure rollers is mechanically linked to a spring mechanism that allows for adjustment of the height of the at least one pressure roller during rolling while applying a constant force on the at least one pressure roller.

26. The pressure rolling system according to any one of claims 23-25, further comprising a clamping mechanism configured to apply a clamping force to the glass article after the glass article exits the set of pressure rollers.

27. A glass article, comprising:

a glass sheet comprising a first major surface and a second major surface, the second major surface comprising at least a first curve;

a frame comprising a support surface, the support surface comprising at least a first complementary curve, wherein the second major surface of the glass sheet faces the support surface of the frame and wherein the first complementary curve is complementary to the first curve; and

an adhesive layer bonding the glass sheet to the frame;

wherein the structural adhesive layer covers at least 80% of the support surface of the frame.

28. The glass article of claim 27, wherein the adhesive layer is a sheet of pressure- senstive adhesive tape.

29. The glass article of claim 27, wherein the adhesive layer comprises at least one of a toughened adhesive, a flexible epoxy, an acrylic, a urethane, or a silicone.

30. The glass article according to any one of claims 27-29, further comprising at least one display device bonded to the frame using optically clear adhesive.

31. The glass article according to any one of claims 27-30, wherein the glass sheet

comprises a chemically strengthened aluminosilicate glass composition.

32. The glass article according to any one of claims 27-31, wherein the glass sheet has a thickness of from 0.4 mm to 2.0 mm.

33. The glass article according to any one of claims 27-32, further comprising a surface treatment on the first major surface of the glass sheet.

34. The glass article according to any one of claims 27-33, wherein the surface treatment is at least one of a tint film, an ink or pigment design, an anti-glare treatment, an anti- reflective coating, and easy-to-clean coating.

35. The glass article according to any one of claims 27-34, wherein the second major surface of the glass sheet comprises a second curve and the support surface of the frame comprises a second complementary curve.

36. The glass article according to claim 35, wherein at least one of the first curve or the second curve has a radius of curvature of 10,000 mm or less.

37. The glass article according to any one of claim 35 or claim 36, wherein the first curve is concave and the second curve is convex.

38. A vehicle interior comprising the glass article according to any one of claims 27-37.